My Math Forum  

Go Back   My Math Forum > College Math Forum > Differential Equations

Differential Equations Ordinary and Partial Differential Equations Math Forum


Thanks Tree1Thanks
  • 1 Post By romsek
Reply
 
LinkBack Thread Tools Display Modes
December 7th, 2016, 09:30 AM   #1
Newbie
 
Joined: Nov 2016
From: Greece

Posts: 14
Thanks: 0

pde

I need a hint for this exercise!partial de.jpg
tsam is offline  
 
December 7th, 2016, 09:44 AM   #2
Senior Member
 
romsek's Avatar
 
Joined: Sep 2015
From: CA

Posts: 1,301
Thanks: 665

I'd assume spherical symmetry and that the neutron density depends only upon $r$ and $t$.

You'll have to take the Laplacian in spherical coordinates.

See if that gets you anywhere.
Thanks from tsam
romsek is online now  
Reply

  My Math Forum > College Math Forum > Differential Equations

Tags
pde



Thread Tools
Display Modes






Copyright © 2017 My Math Forum. All rights reserved.